Abstract
With the development of distributed clean energy, the DC grid system begins to highlight its advantages. Based on the virtual motor theory, the control strategy of a DC power converter is proposed. The DC side adopts the virtual DC motor control to enhance the system’s inertia and damping and improve the stability of the DC grid system. Then, the power converter in the DC grid system is designed, and the mathematical model of virtual motor control is established. Finally, for a typical DC grid system, the simulation results using software verify the correctness and effectiveness of the proposed technical path of DC power grid, providing a new technology roadmap for the research of DC power grid and power converter.
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